Long recognized as the world’s lightest headset, the AER series offers a hybrid steel and aluminum bearing that provides even greater durability and a 35% weight savings over comparable models. Strategic machining and precision contours provide an optimal balance between weight savings and strength. The AER headset is an ideal headset choice for road and mountain bike applications- a high quality durable headset with durability and lightweight performance in mind.
AER Upper Headset (ZS44/28.6 | H8) Product Specifications:
- Lightweight 7075 T-6 Aluminum top cap and bearing cover
- Steel/ Aliminum cartridge hybrid bearing
- Contoured and relieved top cover H8 (8mm stack height)
AER Bottom Headset Product Specifications:
- Lightweight 7075 T-6 aluminum cup
- Steel/ Aluminum cartridge hybrid bearing
BR 4723 
US 3785 
IN 1526 
CN 1223 
AR 996 
VN 901 
GB 701 
SG 528 
